What colors do I need to paint along with Bob?

I get asked this question frequently so I thought I would provide some insight today.
Bob did 403 episodes of the “Joy of Painting”™️. Over those episodes he used a small set of thick, specially formulated, oils for his wet-on-wet method.
There are 14 colors in the Landscape line of paints today. Here is a table listing the colors ranked by the frequency of use across those 403 episodes
COLOR # of paintings used
Titanium White 400
Alizarin Crimson 380
Van Dyke Brown. 371
Cadmium Yellow 346
Yellow Ochre 327
Phthalo Blue 323
Bright Red 321